Shoe upper



FIG. 1 is a rear perspective view of a shoe upper showing my new design;

FIG. 2 is a rear view thereof; and,

FIG. 3 is a second rear perspective view thereof.

The broken lines in the drawings depict portions of the shoe, including the sole, top, and tongue that form no part of the claimed design. 

CLAIM The ornamental design for a shoe upper, as shown and described. 